#include "prison.h"
#include<bits/stdc++.h>
using namespace std;
#define in insert
#define all(x) x.begin(),x.end()
#define pb push_back
#define eb emplace_back
#define ff first
#define ss second
//#define int long long
typedef long long ll;
typedef vector<int> vi;
typedef set<int> si;
typedef multiset<int> msi;
typedef pair<int, int> pii;
typedef vector<pii> vpii;
vector<vector<int>> devise_strategy(int n) {
vector<vector<int>> ret(n + 1, vector<int>(n + 1));
ret[0][0] = 0;
for(int i = 1; i <= n; i++) {
ret[0][i] = i;
}
for(int i = 1; i <= n; i++) {
ret[i][0] = 1;
for(int j = 1; j <= n; j++) {
if(i < j) ret[i][j] = -1;
else ret[i][j] = -2;
}
}
return ret;
}
